Clock display had completely gone out

Followed other's comments about process. Opened door then removed 4 hexnuts from bottom of stove control panel. Removed hexnut from each triangular side panel of control panel. Removed side panel (it did break off a screw area near the top of the panel, but did not negatively affect reassembly. Control panel slid down and tilted out so I could see the backside of the clock control circuit card. Removed 2 small cables. The flex cable is removed by pushing in on the small ears on each side of the connector. The cable has a couple of holes which are over protusions on the connector, so be careful. Removed the 2 hex nuts holding the board down, and put in the new one. Put cables back on as removed - the near side of the flex cable connector is free to slide up about 1/8 inch when ears on both ends of connector are pushed in. When raised, put the flex cable in place and push in (along with the side of the connector) until it is latched in place. This took me the longest since I was being careful here, but no more than 10 minutes. Then put control panel back in place, and put triangular end pieces back on panel and attach with hex nut, then put 4 front hex nuts back in place. Worked fine!! Thanks for everyone's encouragement and help in understanding what I would find during this process.